Question

find the slope of a line joining A(1,2) and B(-3,-4)​

Answer 1

Answer:

slope =3/2

Step-by-step explanation:

slope  = (y2 - y1) / (x2 - x1)

          = (-4 - 2) / (-3 - 1)

          = -6 / -4

          = 3/2

Answer 2

$\red \longrightarrow \: \red {answer : }$

How to Find slope ? First of all we have to know about what's slope.

Slope or gradient is the straight line which shows the direction or the path of two places either it's horizontal , vertical and says about whether the graph is increasing or decreasing.

How to find the slope of the two points which are joined ?

Here A ( 1 , 2 ) and B ( -3 , - 4 )

Lets take these points as A (X1 , Y1 ) and B (X2 , Y2)

$\longrightarrow \: formula :$

Slope or gradient = ∆Y/∆x

$slope \: = \frac{y2 - y1}{x2 - x1}$

$= \frac{ - 4 - 2}{ - 3 - 1}$

$= \frac{ - 6}{ - 4}$

$= \frac{3}{2} = 1.5$

$\therefore \: slope \: = \frac{3}{2}$